Guide: Management of Change-Replacement of Baumann NV Electric Actuators with Baumann SV Electric Actuators
Fisher Guide: Management of Change-Replacement of Baumann NV Electric Actuators with Baumann SV Electric Actuators Manuals & Guides
Management of Change Guide
March 2016
D352565X012
Replacement of Baumann™ NV Electric
Actuators with Baumann SV Electric Actuators
Table of Contents
Management of Change ..................................2
Background ....................................................2
Question & Answer Checklist ..........................2
Comparison of Baumann NV and SV Electric
Actuators ........................................................ 5
Materials Construction ....................................................... 6
Output Thrust ..................................................................... 6
Dimensions ........................................................................ 6
Approximate Assembly Weights ......................................... 7
Type ................................................................................... 7
Conclusion ......................................................8
Additional Resources ......................................8
Baumann 24000CVF Valve with SV Electric Actuator
Management of Change
Management of Change (MOC) is a procedure used to proactively manage changes
that can potentially affect safety or general procedure within a process plant. Product
changes often have a signicant impact on plant efciency throughout the transition
period. In lieu of the complexity of completing an MOC approval process, this
MOC Guide has been developed to prevent delays and difculties while ensuring a
successful product change.
Contained in the following sections are design comparisons between the obsolete
Baumann NV electric actuator and the current Baumann SV electric actuator. These
comparisons are intended to help end-users complete MOC approval documents to
understand the similarities and differences between the Baumann NV and SV electric
actuators to facilitate a safe and efcient transition to the Baumann SV electric actuator.
Background
The Baumann NV electric actuator series has been used with Baumann sliding stem
control valves for a number of years. It was used for temperature and humidity
control for HVAC applications including: hot and chilled water, steam, and glycol;
semiconductor manufacturing applications, including: clean rooms, make-up air
handlers, recirculation air handlers, humidication, chillers, jackets, and glycol
systems; along with many other industrial environments, including but not limited
to textiles, food and beverage, and tire manufacturing. The Baumann NV electric
actuator series is now an obsolete product and is to be directly replaced with the
Baumann SV electric actuator series.
MOC: Baumann SV Electric Actuators
March 2016
D352565X012
The Baumann SV electric actuator series leverages features end-users have come to
know in the NV actuator, along with improvements like increased output thrust, a
lighter weight assembly, and faster stroke speed.
Question & Answer Checklist
Q: Does the proposed modication cause any changes to the piping and
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instrumentation diagram (P&ID)?
A: No. Actuation mounting is the same for both the NV and the SV.
Q: Does the proposed modication change process chemistry,
technology, or operating and control philosophies?
A: No.
Q: Does the proposed modication change how the existing plant is
operated?
A: No. Valve capacity is not affected by actuator revisions.
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Q: Does the proposed modication change process ows?
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A: No. Valve capacity is not affected by actuator revisions.
Q: Does the proposed modication change existing pressure relief cases?
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A: No. This change involves actuators only. Pressure relief valve sizing
is not considered when sizing and selecting Fisher control valves for
end user applications. If the control valve is determined to affect
upstream or downstream safety relief cases, review by the end user or
third party is recommended.
Q: Does the proposed modication change the process description?
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A: No.
Q: Have the codes and standards to which the new equipment was
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designed changed?
A: Not to our knowledge. Since both the Baumann NV and SV electric
actuators are buyout components, Fisher cannot conrm whether or
not our supplier’s design codes and standards have changed.
MOC: Baumann SV Electric Actuators
March 2016
D352565X012
Q: Does the proposed modication change the materials of construction,
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such as a change in material form (cast, forged, or alloy)?
A: Yes. The NV housing is polycarbon and the yoke is epoxy-coated
ductile iron, while the SV housing is die-cast aluminum with an
aluminum yoke.
Q: Does the proposed modication introduce new equipment items that
require periodic predictive maintenance?
A: No. The new equipment items will require the same periodic
maintenance as required by the old equipment items.
Q: Does the proposed modication change existing operator training
requirements?
A: No.
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Q: Does the proposed modication introduce new equipment items that
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require spare parts, training manuals, maintenance procedures or
training to teach the maintenance department how to maintain them?
A: Yes. Emerson local business partners and sales ofces offer local
training and support to help ensure operators, maintenance
personnel, and instrument technicians are trained on Baumann SV
electric actuators.
Q: Does the proposed modication introduce new equipment items that
require spares or obsolete spares for existing equipment?
A: Yes. We have created two (2) new mounting kits—one for 0.50 inches
travel (GE81278X012) and one for 0.75 inches travel (GE81279X012).
Q: Does the proposed modication permanently remove the spares for
existing pieces of equipment?
A: No.
MOC: Baumann SV Electric Actuators
March 2016
D352565X012
Q: Does the proposed modication change the inspection scope or
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inspection interval?
A: No.
Q: Does the proposed modication require welding work to be
performed?
A: No.
Q: Have the materials of construction been reviewed to ensure that the
metallurgy is correct?
A: Yes.
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MOC: Baumann SV Electric Actuators
Comparison of Baumann NV and SV Electric Actuators
The NV and SV electric actuators share several specications, as shown in the table below.
March 2016
D352565X012
NV24-MFT,
Actuator Type
Power Failure
Action Direct or Reverse
Power Consumption 5.0 W 5.5 W 4 W 8.5 W
Transformer Size
Travel 12.7 and 19.1 mm (0.50 and 0.75 inches)
Material – Housing
Material - Yoke Ductile Iron, Powder Epoxy-Coated Aluminum
Enclosure Rating
Input Signal 2-10 VDC or 4-20 mA input signal (Upon loss of signal, SVK24 will always close)
Power Supply 24 VAC or 24 VDC
Electrical Connection 3 ft, 18 GA appliance cable, 0.5 inch conduit tting
Ambient Temperature -30 to 50°C (-22 to 122°F)
Relative Humidity Range 5 to 95% RH, non-condensing
Output Thrust 800 N (180 lbf) 1500 N (337 lbf)
Valve Stem Position Feedback Output 2-10 VDC (0.5 mA maximum)
Shutoff Class Class IV or VI per ANSI/FCI 70-2 (Refer to Valve Technical Bulletin)
Travel Time
Noise Level Maximum 35 dB(A) <45 dB(A)
Manual Override 5mm(3/16 inch) Hex Head Screwdriver 4 mm Hex Head
Position Indication Travel indicator on Yoke
Split Range Capability Yes
Agency Approvals
Quality Standard ISO 9001
Weight 1.5 kg (3.3 lbs) 1.8 kg (4 lbs) 1.3 kg (2.9 lbs) 1.6 kg (3.6 lbs)
Non Spring
Return
Lock in last
position
7 VA (class 2
power source)
Polycarbon (ABS), UL94-5V ammability
NEMA 2 / IP 54 with cable entry facing
Maximum 150 seconds for 0.5 and 0.75
inch travel ranges (optional 75 second
travel time for non-spring return) Spring
fail time: 30 seconds for full travel
CE (A), UL873, CSA 4813 02 (CE approval
applies to actuator only)
NVF24-MFT and
NVF24-MFT-E, Spring
Return
Lock in last position /
Fail Open / Fail Closed
10 VA (class 2 power
source)
rating
down
SVX24-MFT SVK24-MFT
Lock in last
position
6 VA (class 2
power source)
Aluminum die cast and plastic casing
NEMA 2, / IP 54 UL Enclosure
CE(A), UL 60730-1A/-2 -14, CSA
E60730- 1:02 (CE approval for actuator
Fail Open / Fail Closed
21 VA (class 2 power
source)
30 seconds
only)
Table 1. Baumann Actuator Specications
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Materials Construction
While the Baumann NV electric actuator used polycarbon (ABS) material for the
housing and epoxy-coated ductile iron for the yoke, the new SV electric actuator
housing and yoke are die-case aluminum. Table 2 illustrates these material
comparisons.
MOC: Baumann SV Electric Actuators
March 2016
D352565X012
Old Type
NV Polycarbon
NVF
NVFE
NV Housing/
Yoke
(ABS), UL94-5V
ammability
rating/ ductile
iron, powder
SV Housing/ Yoke New Type
SVX
Aluminum die cast
and plastic casing/
aluminum
SVK
epoxy-coated
Table 2. Actuator Materials of Construction Comparison
Output Thrust
The available thrust capability for the new SV electric actuator nearly doubles that
of the NV electric actuator. Table 3 illustrates the comparison in available thrust.
Old Type
NV
NVF
NVFE
Table 3. Actuator Thrust Comparison
NV Output
Thrust
SV Output Thrust New Type
800 N (180 lbf.) 1500 N (337 lbf.)
SVX
SVK
Dimensions
Please reference Table 4 below along with Figures 1 & 2 for illustration of
dimensional differences.
Actuator Type Actuator Height Actuator Width
NV 284 mm (11.2 in) 179 mm (7.0 in)
SV 244 mm (9.6 in) 258 mm (10.16 in)
Table 4. Actuator Dimensional Comparison
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MOC: Baumann SV Electric Actuators
March 2016
D352565X012
Figure 1. Baumann NV electric actuator
on a Baumann control valve body
Figure 2. Baumann SV electric actuator
on a Baumann control valve body
Approximate Assembly Weights
Table 5 provides approximate assembly weights for the Baumann NV and SV electric
actuators. For more specic information, please contact your Emerson local sales ofce.
Old Type NV Weight SV Weight New Type
NV 1.5 kg (3.3 lbs) 1.3 kg (2.9 lbs) SVX
NVF
NVFE
Table 5. Approximate Actuator Assembly Weight Comparison
1.8 kg (4 lbs) 1.6 kg (3.6 lbs) SVK
Type
Table 6 illustrates the type comparison between the Baumann NV and SV series.
Old Type
NV
NVF
NVFE
Table 6: Actuator Type Comparison
Old
Description
Non Spring
Return,
proportional,
fails in last
position, 4-20
mA
Spring Return,
proportional,
fails open, 4-20
mA
Spring Return,
proportional,
fails closed,
4-20 mA
New Description New Type
Non Spring Return,
proportional, fails in
last position, 4-20 mA
Spring Return,
modulating, Fail Open /
Fail Closed, 4-20 mA
SVX
SVK
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Conclusion
The Baumann SV electric actuator offers compatible sizes and features for Baumann
sliding stem control valves for use in a wide range of industrial environments and is
the direct replacement for the obsolete Baumann NV electric actuator.
Please contact your local Emerson sales ofce for additional details or questions
regarding the Baumann SV electric actuator.
Additional Resources
MOC: Baumann SV Electric Actuators
March 2016
D352565X012
Baumann SV
Product Bulletin
D104169X012
http://www.Facebook.com/FisherValves
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Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
Baumann SV
Instruction Manual
D104170X012
http://www.YouTube.com/user/FisherControlValve
http://www.LinkedIn.com/groups/Fisher-3941826
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